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Keywords: pore pressure
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Proceedings Papers
De-risking hydrocarbon prospects in the presence of bentonite
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4101306
... facies prospect probability applied geoscience & energy 10 oil sand structural geology petroleum geology economic geology american association hydrocarbon prospect petroleum basin shale depth interval rock physic effective pressure bearing sand pore pressure De-risking hydrocarbon...
Proceedings Papers
Diagenesis and pore pressure induced dim spots - Advances on AVO analysis of high-impedance reservoirs
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4101349
... We introduce a pressure-dependent rock physics model for shales and sands to analyze the effects of pore pressure and diagenesis on high-impedance reservoirs. With datasets at multiple scales (plugs, logs, and seismic) we show how diagenesis and composition combination impacts the seismic...
Proceedings Papers
Formation pressure modeling using offshore seismic data
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4101793
... Predrilling pore pressure prediction is of great importance in reservoir exploration. High-accuracy pressure prediction prevents drilling accidence and promotes the development of natural resources. Traditional modeling process using Eaton method has poor fitting performance under complex...
Proceedings Papers
Analysis of the influence of bedding-parallel cracks on shale anisotropy based on stress-induced rock physics model
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG International Meeting for Applied Geoscience & Energy, August 26–29, 2024
Paper Number: SEG-2024-4094717
... parameter for shale oil, because it related to the enrichment of hydrocarbon and can also be helpful to fracturing of the shale formation. The rock physics relation between BCD and seismic anisotropy is influence by both stress (confining stress and pore pressure) and shale intrinsic anisotropy...
Proceedings Papers
Induced seismicity risk analysis using a novel 3D modelling approach
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3582441
... stress models are incorporated by utilizing well logs and other calibration data. Fluid injection and the creation of hydraulic fractures are simulated, and subsequent stress changes on nearby faults due to pore pressure and poroelastic stresses estimated. When slip is initiated on faults due...
Proceedings Papers
A practical ML workflow to quantify dynamic reservoir property changes from 4D seismic
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3577776
... general features quality and uncertainty ranges. Finally, we applied solution. With the use of Monte Carlo simulations (Xue et an iterative approach to estimate changes in the water al., 2019) or existing simulation grids (Dramsch, 2019), the saturation, gas saturation and pore pressure of the reservoir...
Proceedings Papers
TOC removal methodologies for pore-pressure prediction in the organic-rich formations
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3594428
... In this paper, we have shown methodologies to remove the effect of TOC from compressional velocity data. The resultant TOC/kerogen-free V P can be used to optimize pore-pressure estimation in unconventional shales. reservoir geomechanics complex reservoir pore pressure reservoir...
Proceedings Papers
The logical error in Gassmann poroelasticity: Consistency with effective medium theory
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG/AAPG/SEPM First International Meeting for Applied Geoscience & Energy, September 26–October 1, 2021
Paper Number: SEG-2021-3580471
... in the 4D context. the confounding, of hydraulically open and hydraulically closed rock systems. The theoretical discussion revealing Gassmann assumed that the pore pressure is uniform within that error is given in detail in Thomsen (2020ab), and is not a Representative Mass Element of rock. In real rocks...
Proceedings Papers
Poroelasticity of compositionally heterogeneous rocks with application to geomechanics
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3428078
... the model with two different pore fluids. The composite sphere model is then used to estimate Brown-Korringa parameters for clay-rich rocks. The models are applied to a geomechanical problem: computing the change in pore pressure due to erosional uplift of low-permeabilityrocks. Presentation Date: Monday...
Proceedings Papers
Predicting drilling performance in unconventional reservoirs using seismic inversion
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3417843
... such as borehole diameter, pressure in the borehole, weight on bit, revolutions per minute, and torque, they depend also on formation properties such as the geomechanical properties of the rock, pore pressure, and in situ stress. We describe a workflow for predicting such formation properties using the results...
Proceedings Papers
Modeling wave dispersion and attenuation characteristics of complex porous media containing multi-type and multi-scale heterogeneities
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3413016
... frame, and pore fabric). Understanding and modeling mainly concentrate on characterizing pore pressure their frequency-dependent elastic and adsorption behaviors relaxation caused by a single-type or single-scale is of great interest for subsurface rock characterization from heterogeneity related...
Proceedings Papers
Gassmann-Nur-Aplin pore pressure prediction
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3423889
... Velocity based pore pressure prediction has been successfully used to predict overpressure and underpressure zones to avoid drilling hazards. More recently overpressure estimation has been used in reservoir characterization to analyze productivity in a shale reservoir – “… overpressured shale...
Proceedings Papers
A logical error in Gassmann poroelasticity
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3424536
... = H 1 compressibility is valid, with M and independent (or with H and R independent) for all macro-isotropic, B&K s choice of to denote the undrained compressibility statistically uniform rocks, with uniform pore pressure. ud is specified in their equation (1). The strange parameters A, M...
Proceedings Papers
The effects of boundary conditions on seismic wave dispersion and attenuation in partially saturated rocks
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, October 11–16, 2020
Paper Number: SEG-2020-3426212
... boundary condition geophysics undrained condition bulk modulus reservoir characterization pore pressure fluid pressure exploration geophysicist 10 wave attenuation The effects of boundary conditions on seismic wave dispersion and attenuation in partially saturated rocks Luanxiao Zhao*, Yirong...
Proceedings Papers
A novel pore pressure prediction model based on rock physical experiment
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3215379
... glutenite reservoir s-wave velocity upstream oil & gas rock physical experiment intra-layer section equation correlation seg international exposition annual meeting variation porosity effective stress reservoir novel pore pressure prediction model pore pressure pore pressure prediction...
Proceedings Papers
Influence of reservoir shale physical properties on the multi-field coupling of fracturing fluid-shale interactions
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216163
... diffusion and the induced pore pressure by chemical osmosis between shale gas reservoir and fracturing fluid was established. Considering the porosity and permeability of reservoir shale, the spatial and temporal variation of induced pore pressure and fluid solute concentration under chemical action...
Proceedings Papers
A machine learning approach to quantitative interpretation
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216138
... workflow ikon science artificial intelligence application seg international exposition upstream oil & gas workflow interpretation pore pressure prediction algorithm workflow 1 machine learning Geron , A. , 2017 , Hands-on machine learning with Scikit-learn and Tensorflow...
Proceedings Papers
Studying stress state and fault zone properties of source regions of induced seismicity using dynamic rupture models
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216344
... Presentation Type: Oral earthquake upstream oil & gas produced water discharge reservoir characterization stress state seismicity perturbation waste management reservoir geomechanics annual meeting duan szafranski equation pore pressure modeling injection timpson fault zone property...
Proceedings Papers
Evolutionary rock physics for mudrock pressure modeling
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216792
... ABSTRACT Most current rock physics work on unconventional resources focuses on the present-day rock properties such as velocity and pore pressure. However, present-day properties are controlled by a rock’s burial history. Here we present an inclusion-based, geologically-constrained rock...
Proceedings Papers
Notes on parameterization of minimum horizontal stress (σ h ) for geomechanical models
Available to PurchasePublisher: Society of Exploration Geophysicists
Paper presented at the SEG International Exposition and Annual Meeting, September 15–20, 2019
Paper Number: SEG-2019-3216890
...). Presentation Date: Tuesday, September 17, 2019 Session Start Time: 1:50 PM Presentation Start Time: 2:40 PM Location: 217A Presentation Type: Oral biot coefficient tectonic component poisson pore pressure upstream oil & gas investigation coupling factor minimum horizontal stress...
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